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920304930 = 235101303731
BaseRepresentation
bin110110110110101…
…011110100100010
32101010201100000210
4312312223310202
53341044224210
6231153154550
731543314516
oct6666536442
92333640023
10920304930
11432540796
1221825ba56
1311888583c
148a324146
1555bdce20
hex36dabd22

920304930 has 32 divisors (see below), whose sum is σ = 2230607808. Its totient is φ = 242984000.

The previous prime is 920304929. The next prime is 920304947. The reversal of 920304930 is 39403029.

It is a super-2 number, since 2×9203049302 = 1693922328364609800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148836 + ... + 154895.

It is an arithmetic number, because the mean of its divisors is an integer number (69706494).

Almost surely, 2920304930 is an apocalyptic number.

920304930 is an abundant number, since it is smaller than the sum of its proper divisors (1310302878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

920304930 is a wasteful number, since it uses less digits than its factorization.

920304930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303842.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 920304930 is about 30336.5279819560. The cubic root of 920304930 is about 972.6962677953.

Adding to 920304930 its reverse (39403029), we get a palindrome (959707959).

The spelling of 920304930 in words is "nine hundred twenty million, three hundred four thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 101 202 303 505 606 1010 1515 3030 303731 607462 911193 1518655 1822386 3037310 4555965 9111930 30676831 61353662 92030493 153384155 184060986 306768310 460152465 920304930